Adsorption of 2,4-dichlorophenol from water using deep eutectic solvents-functionalized carbon nanotubes

Ibrahim, Rusul Khaleel and AlSaadi, Mohammed Abdulhakim and AlOmar, Mohamed Khalid and Ibrahim, Shaliza (2018) Adsorption of 2,4-dichlorophenol from water using deep eutectic solvents-functionalized carbon nanotubes. Desalination and Water Treatment, 116. pp. 214-231. ISSN 1944-3994

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Official URL: https://doi.org/10.5004/dwt.2018.22485

Abstract

In this work, novel adsorbents for 2,4-dichlorphenol (DCP) were introduced using deep eutectic solvent (DES) as functionalization agent for multi-wall carbon nanotubes (MWCNTs). Choline chloride salt (ChCl) was mixed with ethylene glycol (EG) as hydrogen bond donor (HBD) at molar ratio of (1:2) to prepare DES. Three DES-based MWCNTs adsorbents were produced and their chemical, physical and morphological properties were investigated using, RAMAN, FTIR, FESEM, zeta potential, TGA, TEM and BET surface area. The capability of DES as non-destructive functionalization agent for MWCNTs was proved by the increase of the purity and the surface area of MWCNTs. Response surface methodology was used to define the optimum conditions for 2,4-DCP adsorption onto each adsorbent. The adsorption experimental data were well described by pseudo-second order kinetic mode land by Langmuir isotherm model. DES-acid treated MWCNTs showed the highest maximum adsorption capacity of 390.53 mg g −1 .

Item Type: Article
Uncontrolled Keywords: 2; 4-dichlorophenol; Carbon nanotubes; Deep eutectic solvents; Functionalization; Water treatment
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Deputy Vice Chancellor (Research & Innovation) Office > Nanotechnology & Catalysis Research Centre
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 06 Aug 2019 07:45
Last Modified: 06 Aug 2019 07:45
URI: http://eprints.um.edu.my/id/eprint/21833

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